... M high speed ball bearings high precision P0,P6,P5 China manufacture 1. High precision thrust ball bearings 2. Chinese manufacturer ... /outer rings, rollers, balls, cages) are from the best suppliers in China, international standard, and SYB 100% check the materials before production ... has reach to the best among the manufactures in North China. 5. Service Advantage SYB set the customers’ need as our ...